The instance (if necessary) of the backup within the backup
file. This is necessary if a particular file contains multiple
backups.

<sqlUserName>

No

User name for connecting to the SQL server via SQL
Authentication. If this node is present, the connection will be
made via SQL Authentication rather than Windows Authentication. The
existence of this node also requires that the <sqlUserPass/>
node exist.

<sqlUserPass>

No

The password for connecting to the SQL server via SQL
Authentication, using the username indicated by
<sqlUserName/>. If the <sqlUserName/> node is not
present, this node is ignored.